Base | Representation |
---|---|
bin | 11000010001011100… |
… | …01000011111100111 |
3 | 1020122011112012200200 |
4 | 30020232020133213 |
5 | 203141442304111 |
6 | 5553024041543 |
7 | 640632324504 |
oct | 141056103747 |
9 | 36564465620 |
10 | 13031213031 |
11 | 5587864251 |
12 | 26381632b3 |
13 | 12c89acb55 |
14 | 8b89724ab |
15 | 51406a256 |
hex | 308b887e7 |
13031213031 has 12 divisors (see below), whose sum is σ = 19930090752. Its totient is φ = 8176447296.
The previous prime is 13031213029. The next prime is 13031213033.
It is a happy number.
13031213031 is nontrivially palindromic in base 10.
13031213031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (13031213029) and next prime (13031213033).
It is not a de Polignac number, because 13031213031 - 21 = 13031213029 is a prime.
It is a super-2 number, since 2×130312130312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13031212995 and 13031213013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13031213033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42585511 + ... + 42585816.
It is an arithmetic number, because the mean of its divisors is an integer number (1660840896).
Almost surely, 213031213031 is an apocalyptic number.
13031213031 is a deficient number, since it is larger than the sum of its proper divisors (6898877721).
13031213031 is a wasteful number, since it uses less digits than its factorization.
13031213031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85171350 (or 85171347 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The spelling of 13031213031 in words is "thirteen billion, thirty-one million, two hundred thirteen thousand, thirty-one".
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